In the safety architecture of high-rise buildings in Kuala Lumpur and Selangor, the Emergency Exit Air Duct (often referred to as a Staircase Pressurization Duct) is the primary "life-support line" for the evacuation route. These specialized ducts deliver fresh air into escape stairwells to create a positive pressure shield that physically blocks toxic smoke from entering the sanctuary of the exit path.
EKG M&E Sdn Bhd engineers these systems to remain operational under extreme thermal stress, ensuring full compliance with MS 1472, BOMBA standards, and the Uniform Building By-Laws (UBBL).
Maintaining a smoke-free environment across 30 or 50 floors requires a ducting system that can handle high static pressure without leakage or structural failure.
Because these ducts travel through multiple fire compartments, they must be protected against external fire exposure to prevent the "injection" of heated air or smoke into the exit route.
Integrity & Insulation: We encase heavy-gauge galvanized steel (G.I.) in BOMBA-approved fire-rated boards or high-density mineral wool wraps. This ensures the duct remains intact for at least 2 hours (120 minutes) during a fire event.
Structural Stability: We utilize reinforced, fire-rated hanger systems that prevent the ductwork from buckling under the intense thermal expansion caused by a fire.
Under MS 1472, the system must maintain a stable pressure differential to reject smoke.
Static Protection: When all fire doors are closed, the ducting delivers enough air to maintain a 50 Pa (Pascal) difference between the stairwell and the floor area.
Velocity Wash (1.0 m/s): When an evacuee opens a fire door, the ducting must provide an air velocity of at least 1.0 m/s across the opening to wash away incoming toxic gases.
As a BOMBA-Compliant M&E Specialist, EKG ensures your emergency ductwork supports long-term building performance:
TNB Energy Efficiency (Leakage Control):
A leaky duct system forces the fan motor to work harder. By ensuring a Class C Airtight installation, we eliminate static pressure loss. This allows your Variable Frequency Drive (VFD) to maintain safety standards at lower motor frequencies (Hz) during weekly testing, directly reducing your monthly TNB electricity bill.
EECA 2024 & Building Compliance:
Under the Energy Efficiency and Conservation Act (EECA) 2024, mechanical air transport must be optimized. Our precision-sealed fire ducts protect your Building Energy Index (BEI) and ensure your facility is ready for regulatory audits.
Prevention of "Door-Lock":
If the air supply is not properly balanced, it can make fire doors impossible to open (exceeding the 110 N force limit). EKG utilizes calibrated discharge grilles and Barometric Relief Dampers to ensure the pressure is safe for all occupants to exit.
| Feature | Standard Ventilation Ducting | EKG Emergency Exit Air Ducts |
| Airtightness Class | Class A / B | Class C / D (Airtight) |
| Material Gauge | 0.5mm – 0.8mm GI | 1.2mm (BOMBA Standard) |
| Fire Resistance | None | Mandatory 2-Hour (FRL 120/120/120) |
| Joint Sealing | Standard Mastic | Certified Intumescent Sealant |
| BOMBA Required | No | Mandatory for High-Rise FC |
Total 3D BIM Coordination: High-rise shafts are extremely congested. We utilize 3D modeling to route fire-rated ducts with zero "clashes" against sprinklers, wet risers, or structural beams.
Turnkey BOMBA Submission: We perform the mandatory Pressure Differential Test, Door Opening Force Test, and Anemometer Airflow Traverse required for your Fire Certificate (FC) application.
Strategic Regional Support: Based in Kuala Lumpur, we provide professional audits and technical proposals for Grade-A office towers, luxury condominiums, and hospitals across Malaysia.
Is your building's emergency exit airway engineered to survive the heat? Contact EKG M&E Sdn Bhd today for a professional emergency exit air duct audit and technical proposal.
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